Patents by Inventor Kimihiko NAKAZAWA

Kimihiko NAKAZAWA has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11327830
    Abstract: A semiconductor device includes a master circuit which outputs a first write request signal for requesting to write data, a bus which receives the data and the first write request signal, a bus control unit which is arranged on the bus, generates an error detection code for the data and generates a second write request signal which includes second address information corresponding to first address information included in the first write request signal and memory controllers which each write the data into a storage area of an address designated by the first write request signal and writes the error detection code into a storage area of an address designated by the second write request signal in the storage areas of memories.
    Type: Grant
    Filed: January 14, 2021
    Date of Patent: May 10, 2022
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Kimihiko Nakazawa, Takahiro Irita
  • Publication number: 20210133020
    Abstract: A semiconductor device includes a master circuit which outputs a first write request signal for requesting to write data, a bus which receives the data and the first write request signal, a bus control unit which is arranged on the bus, generates an error detection code for the data and generates a second write request signal which includes second address information corresponding to first address information included in the first write request signal and memory controllers which each write the data into a storage area of an address designated by the first write request signal and writes the error detection code into a storage area of an address designated by the second write request signal in the storage areas of memories.
    Type: Application
    Filed: January 14, 2021
    Publication date: May 6, 2021
    Inventors: Kimihiko NAKAZAWA, Takahiro IRITA
  • Patent number: 10922165
    Abstract: A semiconductor device includes a master circuit which outputs a first write request signal for requesting to write data, a bus which receives the data and the first write request signal, a bus control unit which is arranged on the bus, generates an error detection code for the data and generates a second write request signal which includes second address information corresponding to first address information included in the first write request signal and memory controllers which each write the data into a storage area of an address designated by the first write request signal and writes the error detection code into a storage area of an address designated by the second write request signal in the storage areas of memories.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: February 16, 2021
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Kimihiko Nakazawa, Takahiro Irita
  • Patent number: 10459646
    Abstract: Disclosed is a semiconductor device capable of performing compression and decompression with increased appropriateness. The semiconductor device includes a computing module and a memory control module. The computing module includes a computing unit and a compression circuit. The computing unit performs arithmetic processing. The compression circuit compresses data indicative of the result of arithmetic processing. The memory control module includes an access circuit and a decompression circuit. The access circuit writes compressed data into a memory and reads written data from the memory. The decompression circuit decompresses data read from the memory and outputs the decompressed data to the computing module.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: October 29, 2019
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Katsushige Matsubara, Seiji Mochizuki, Ryoji Hashimoto, Toshiyuki Kaya, Kimihiko Nakazawa, Takahiro Irita, Tetsuji Tsuda
  • Publication number: 20190163648
    Abstract: A semiconductor device includes a master circuit which outputs a first write request signal for requesting to write data, a bus which receives the data and the first write request signal, a bus control unit which is arranged on the bus, generates an error detection code for the data and generates a second write request signal which includes second address information corresponding to first address information included in the first write request signal and memory controllers which each write the data into a storage area of an address designated by the first write request signal and writes the error detection code into a storage area of an address designated by the second write request signal in the storage areas of memories.
    Type: Application
    Filed: September 13, 2018
    Publication date: May 30, 2019
    Inventors: Kimihiko NAKAZAWA, Takahiro IRITA
  • Publication number: 20170153838
    Abstract: Disclosed is a semiconductor device capable of performing compression and decompression with increased appropriateness. The semiconductor device includes a computing module and a memory control module. The computing module includes a computing unit and a compression circuit. The computing unit performs arithmetic processing. The compression circuit compresses data indicative of the result of arithmetic processing. The memory control module includes an access circuit and a decompression circuit. The access circuit writes compressed data into a memory and reads written data from the memory. The decompression circuit decompresses data read from the memory and outputs the decompressed data to the computing module.
    Type: Application
    Filed: November 18, 2016
    Publication date: June 1, 2017
    Inventors: Katsushige MATSUBARA, Seiji MOCHIZUKI, Ryoji HASHIMOTO, Toshiyuki KAYA, Kimihiko NAKAZAWA, Takahiro IRITA, Tetsuji TSUDA